chisq_mvn: Compute multivariate Mahalanobis distances and corresponding...
In dannymorris/outsiders: Multidimensional Outlier Detection

Compute multivariate Mahalanobis distances and corresponding chi-squared quantiles to assess multivariate normality

1	chisq_mvn(data)

data

a numeric matrix or data.frame

This function is inspired by a discussion of multivariate normality in "An R and S-Plus Companion to Multivariate Analysis" (Everitt, 2005)

a Nx2 tibble with observed Mahalanobis distances and ordered chi-sq quantiles

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mvn_coords <- chisq_mvn(iris[, -5])
plot(distances ~ chisq, data = mvn_coords)
abline(lm(distances ~ chisq, data = mvn_coords))

dannymorris/outsiders documentation built on May 13, 2019, 1:22 p.m.

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